Question

How do I calculate this, I'm trying to explain my daughter's 4th grade homework to her. ..Adrian Dakota & Calvin made an average of 52 snacks Adrian & Dakota made an avereage of 61 snacks Dakota and Calvin made an average of 44 snacks. How many sancks did each individual make?

Answer 1

we can write down 3 equations if that helps
\[\frac{A+C+D}{3}=52\]
\[\frac{A+D}{2}=61\]
\[\frac{D+C}{2}=44\] and see if we can find what each of them are

Answer 2

or maybe we can just think. since
\[\frac{A+D}{2}=61\] that means
\[A+D=121\] so
\[\frac{A+C+D}{3}=\frac{C+121}{3}=52\] and so
\[C+121 = 3\times 52=156\]therefore
\[C=156-121=35\]

Answer 3

now the others should be easy

Answer 4

Thanks! I can't believe this is 4th grade math!!!

Answer 5

yeah i was trying to think of a way to do this in our heads, but i cannot. there might be a simpler way without equations, but i can't think of it